I seem to have terrible luck with cherry trees. I have 2 questions. first, Since they have taken away Diazinon as a root borer killer, how do I manage root borer? Second, I live in the city and have irrigation water going to my yard and garden. How do I water them. I'm afraid one tree, that sits to the back of my garden is getting a lot of water when I flood my tomatoes. Do they not like flooding. How can I protect this tree? How should I water my other cherry trees planted away from my veg garden. I got two montmaurancy trees last year and they both died. I love cherry trees and I need HELP



If you are asking about the prionus root borer, there are currently no recommended insecticides for this pest. See the USU Extension Fact Sheet about the borer at http://extension.usu.edu/files/publications/publication/HG_Orchard_2005-01.pdf

Cherry trees will not tolerate "wet feet", so you must plant them somewhere with good soil drainage. If there isn't anywhere on your property with good drainage, you could build a berm so that most of their root system is in well-drained soil. Here is a link to a publication with more information about growing cherry trees: http://www.hort.purdue.edu/ext/HO-9.pdf

Water the trees so that the soil drains completely between irrigations. Check that the soil is drained before watering again. You can do this by pushing a long screwdriver into the soil - you'll feel resistance when you hit dry soil.

Good gardening!



Posted on 8 May 2007

Maggie Wolf
Horticulture Agent, Salt Lake County

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